package com.yunhe.java.Day09;

/**
 * Created by Administrator on 2017/8/2 0002.
 */
public class math {
    public static void main(String[] args) {
       double a=  Math.ceil(5.5);
        System.out.println(a);
        int a1=Math.abs(-100);
        System.out.println(a1);
    }
}
